diff --git a/app/api/endpoints/user.py b/app/api/endpoints/user.py
index 03b6398..ebbaced 100644
--- a/app/api/endpoints/user.py
+++ b/app/api/endpoints/user.py
@@ -359,14 +359,13 @@ def issue_register_coupons(db: Session, user_id: int):
     register_coupons = settings.REGISTER_COUPONS
     
     # 设置过期时间
-    expire_time = datetime.now() + timedelta(days=register_coupons["expire_days"])
-    
     for config in register_coupons:
         coupon = db.query(CouponDB).filter(
             CouponDB.id == config["coupon_id"]
         ).first()
         
         if coupon:
+            expire_time = datetime.now() + timedelta(days=config["expire_days"])
             for _ in range(config["count"]):
                 user_coupon = UserCouponDB(
                     user_id=user_id,